Modular lighting system



FIG. 1 is a front view of a first design of my series relating to amodular lighting system;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front view of a second design of my series relating to amodular lighting system;

FIG. 6 is a rear view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is a top plan view thereof.

The ornamental design for a modular lighting system, as shown anddescribed.